/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 *
 *    (C) 2002-2008, Open Source Geospatial Foundation (OSGeo)
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation;
 *    version 2.1 of the License.
 *
 *    This library is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *    Lesser General Public License for more details.
 */
package org.geotools.gml3.bindings;

import java.util.List;

import javax.xml.namespace.QName;

import org.geotools.gml3.GML;
import org.geotools.xml.AbstractComplexBinding;
import org.geotools.xml.ElementInstance;
import org.geotools.xml.Node;

import com.vividsolutions.jts.geom.GeometryFactory;
import com.vividsolutions.jts.geom.MultiPolygon;
import com.vividsolutions.jts.geom.Polygon;


/**
 * Binding object for the type http://www.opengis.net/gml:MultiPolygonType.
 *
 * <p>
 *        <pre>
 *         <code>
 *  <complexType name="MultiPolygonType">
 *      <annotation>
 *          <documentation>A MultiPolygon is defined by one or more Polygons, referenced through polygonMember elements. Deprecated with GML version 3.0. Use MultiSurfaceType instead.</documentation>
 *      </annotation>
 *      <complexContent>
 *          <extension base="gml:AbstractGeometricAggregateType">
 *              <sequence>
 *                  <element maxOccurs="unbounded" minOccurs="0" ref="gml:polygonMember"/>
 *              </sequence>
 *          </extension>
 *      </complexContent>
 *  </complexType>
 *
 *          </code>
 *         </pre>
 * </p>
 *
 * @generated
 *
 * @source $URL$
 */
public class MultiPolygonTypeBinding extends AbstractComplexBinding implements Comparable {
    GeometryFactory gFactory;

    public MultiPolygonTypeBinding(GeometryFactory gFactory) {
        this.gFactory = gFactory;
    }

    /**
     * @generated
     */
    public QName getTarget() {
        return GML.MultiPolygonType;
    }

    public int getExecutionMode() {
        return BEFORE;
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     *
     * @generated modifiable
     */
    public Class getType() {
        return MultiPolygon.class;
    }

    /**
     * <!-- begin-user-doc -->
     * <!-- end-user-doc -->
     *
     * @generated modifiable
     */
    public Object parse(ElementInstance instance, Node node, Object value)
        throws Exception {
        List polys = node.getChildValues(Polygon.class);

        return gFactory.createMultiPolygon((Polygon[]) polys.toArray(new Polygon[polys.size()]));
    }

    public Object getProperty(Object object, QName name)
        throws Exception {
        if (GML.polygonMember.equals(name)) {
            MultiPolygon multiPolygon = (MultiPolygon) object;
            Polygon[] members = new Polygon[multiPolygon.getNumGeometries()];

            for (int i = 0; i < members.length; i++) {
                members[i] = (Polygon) multiPolygon.getGeometryN(i);
            }

            return members;
        }

        return null;
    }

    /**
     * Implement comparable because both MultiPolygonBinding and MultiSurfaceBinding
     * are bound to the same class, MultiPolygon. Since MultiPolygon is deprecated
     * by gml3 MultiSurface always wins.
     */
    public int compareTo(Object o) {
        if (o instanceof MultiSurfaceTypeBinding) {
            return 1;
        } else {
            return 0;
        }
    }
}